From either side coming from Herradura/Jacó/Hermosa or Esterillos/Bejuco, following the Costanera main road, arrive at "Quebrada Amarilla", you will see a THE PARK sign. Turn there and about 1.5 km in you will see the park entrance on the left! On the way you'll see a lot of signs from the park :)
You can cancel up to 24 hours in advance of the experience for a full refund.
up to 24 hours before the experience starts (local time)